Related Party Transactions - Schedule of Related Party Transactions with Major Related Parties (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2021 CNY (¥)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2019 CNY (¥)
Interest income
Interest income from related party	¥ 0	$ 0	¥ 1,247	¥ 4,856
Revenue from related parties including interest income	657,675	103,204	463,733	601,609
Cost of revenues
Cost of revenue to related party	1,239,044	194,433	1,111,729	1,565,850
Selling, general and administrative
Selling, general and administrative expenses to related party	24,343	3,820	5,045	5,581
Research and development
Research and development expenses to related party	0		7,412	19,486
Operating costs and expenses to related parties	1,263,387	198,253	1,124,186	1,590,917
Baidu
Research and development
Research and development expenses to related party	0	0	7,412	19,486
Others
Cost of revenues
Cost of revenue to related party	306,392	48,080	90,577	86,766
Selling, general and administrative
Selling, general and administrative expenses to related party	10,989	1,724	2,579	3,756
Membership services
Related Party Transaction [Line Items]
Revenue from related parties	3,766	591	25,571	27,247
Membership services \| Baidu
Related Party Transaction [Line Items]
Revenue from related parties	0	0	19,799	20,886
Membership services \| Others
Related Party Transaction [Line Items]
Revenue from related parties	3,766	591	5,772	6,361
Online Advertising Revenues
Related Party Transaction [Line Items]
Revenue from related parties	296,920	46,594	206,624	77,126
Online Advertising Revenues \| Baidu
Related Party Transaction [Line Items]
Revenue from related parties	122,919	19,289	113,934	67,452
Online Advertising Revenues \| Others
Related Party Transaction [Line Items]
Revenue from related parties	174,001	27,305	92,690	9,674
Content distribution
Related Party Transaction [Line Items]
Revenue from related parties	297,304	46,653	176,227	443,503
Other Revenues
Related Party Transaction [Line Items]
Revenue from related parties	59,685	9,366	54,064	48,877
Other Revenues \| Baidu
Related Party Transaction [Line Items]
Revenue from related parties	14,496	2,275	15,430	12,343
Other Revenues \| Others
Related Party Transaction [Line Items]
Revenue from related parties	45,189	7,091	38,634	36,534
License Fees \| Baidu
Cost of revenues
Cost of revenue to related party	13,894	2,180	13,691	23,064
Bandwidth Fee \| Baidu
Cost of revenues
Cost of revenue to related party	918,758	144,173	1,007,461	976,523
Traffic Acquisition and Other Services \| Baidu
Cost of revenues
Cost of revenue to related party	0	0	0	479,497
Advertising Services Expense \| Baidu
Selling, general and administrative
Selling, general and administrative expenses to related party	¥ 13,354	$ 2,096	¥ 2,466	¥ 1,825

Interest income.

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Related party costs including interest expenses.

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Related party transaction research and development expenses from transactions with related party.

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Revenue from related parties including interest income.

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Amount of interest income earned from interest-bearing assets owed to the entity by related party.

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Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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